Galeopsomyia mesana Hansson & Hanson 2023, sp.nov.

Galeopsomyia mesana Hansson sp.nov. (Figs 500, 501, 833, 984) Diagnosis (female). Antennal clava solid, flagellum short (Fig. 833); genal carina present; mesoscutellum (Fig. 500) with median part with very weak reticulation and shiny, lateral parts with strong reticulation, meshes elongate, with an indistinct median groove in anterior one-third, submedian grooves diverging towards posterior part, with outer margin absent; dorsellum with median carina; propodeum (Fig. 500) with strong irregular carinae and weak reticulation, callus with eight setae; gaster (Fig. 500) 1.9× as long as wide, tergites with strong reticulation, strongly metallic golden-red. Male flagellum (Fig. 984) with dorso-basal whorls of long setae present only on F1; scape different from male of similar G. lasallei. Female holotype: length of body 2.0mm (paratypes 1.9mm). Scape yellowish-brown, pedicel brown, flagellum dark brown. Head golden-green with red tinges, clypeus dark brown. Mesoscutum with sidelobes golden-green, midlobe golden-red; mesoscutellum and propodeum golden-red. Legs with coxae golden-green with red tinges; trochanters, femora and tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster golden-red; gonoplac black. Antenna with solid clava. Face below level of toruli with strong reticulation, clypeus smooth, frons rugose, antennal scrobes with weak reticulation; with genal carina. Vertex with weak reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle. Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe with parts close to notauli rugose with 12 scattered setae, with a median groove in posterior half. Mesoscutellum with median part with very weak reticulation and shiny, lateral parts with strong reticulation, meshes elongate, with an indistinct median groove in anterior one-third, submedian grooves diverging towards posterior part, with outer margin absent, lateral parts with ten scattered setae. Dorsellum with weak sculpture and shiny, with median carina. Propodeum with a wide median carina, anteriorly expanding into a cup; with strong irregular carinae and weak reticulation; callus with eight setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with 4&5 setae on dorsal surface of submarginal vein; speculum closed; costal setal row unbroken. Petiole transverse with strong sculpture on dorsal part. Gaster ovate-elongate; tergites with strong reticulation. Relative measurements: head length, dorsal view 23; head length, frontal view 38; POL 10; OOL 5.5; lateral ocellus diameter 4.3; head width 51; mouth width nm; malar space 12; eye length 23; scape length 18; scape width 3.5; pedicel+flagellum length 43; pedicel length 7; pedicel width, dorsal view 4; F1 length 7; F1 width 5; F2 length 6.5; F2 width 5; F3 length 6; F3 width 5; clava length 14; clava width 6; C3 length 5; spicule length 1; mesosoma length 62; mesosoma width 44; midlobe of mesoscutum length 23; mesoscutellum length 24; mesoscutellum width 21; median part of mesoscutellum width (measured medially) 7.5; median part of mesoscutellum, width in anterior part 7.5; median part of mesoscutellum, width in posterior part 10; lateral part of mesoscutellum, width (measured medially) 3.5; dorsellum length 3; propodeum length 9; costal cell length 30; costal cell width (measured at widest part) 3; marginal vein length 30; stigmal vein length 11; gaster length 76; gaster width 41; Gt 2 length (measured medially) 7.5; Gt 4 length (measured medially) 15; Gt 7 length (measured medially) 7; Gt 7 width (measured at base) 11; longest cercal seta length 12; shortest cercal seta length 5. Male. Length of body 1.7mm. Antenna (Fig. 984) with scape with almost equal width throughout; plaque dark brown and extending along major part of scape; dorso-basal whorls of long setae present only on F1. Gaster short ovate; Gt 1 with weak reticulation and shiny, remaining tergites with strong reticulation. Otherwise as in female. Relative measurements: head length, dorsal view 22; head length, frontal view 36; head width 46; mouth width 16; malar space 11; eye length 22; scape length 18.5; scape width 5; plaque length 13.5; pedicel length 7; pedicel+flagellum length 51; F1 length 4.5; F1 width 4; F2 length 6.5; F2 width 4; F3 length 7; F3 width 3.5; F4 length 7; F4 width 3.5; clava length 18; clava width 4; mesosoma length 59; mesosoma width 40; gaster length 55; gaster width 33; longest subbasal seta on F1, length 27.5. Hosts. Unknown. Distribution. St Vincent. Material examined. Holotype ♀ ST VINCENT, Charlotte, La Soufrieri, Eastern Slope, 9.vii.1976, from rainforest, J.S. Noyes (NHMUK). Paratypes (2♀ 1♂, NHMUK): 1♀ ST VINCENT, Charlotte, Montreal, 8.vii.1976, from edge of rainforest, J.S. Noyes; 1♀ 1♂ ST VINCENT, St. George, Belmont, 6.vii.1976, from wasteground, J.S. Noyes.

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